Classification:

Reference:

Date:

FA21-010B

ITB21-023B

December 13, 2023

TRANSFER ASSEMBLY SEAL REPLACEMENT
FOR AWD FRONT DRIVE SHAFT REMOVAL
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLES:

2019-2024 QX50 (J55)
2022-2024 QX55 (FJ55)
2014-2020 QX60 (L50)
2014 QX60 Hybrid (L50H)

APPLIED DRIVELINES:

AWD only

SERVICE INFORMATION
When removing the front passenger (RH) side drive shaft on an APPLIED VEHICLE for any reason, transfer
assembly drive shaft oil seal and dust cover seal replacement is required.


Refer to the SERVICE PROCEDURE in this bulletin for transfer assembly drive shaft oil seal and dust
cover seal replacement.



Refer to the ESM and ITB17-001 for additional SERVICE INFORMATION regarding front passenger (RH)
side drive shaft removal and installation.



DO NOT REPLACE the transfer assembly.
o This repair does NOT require transfer assembly removal from the vehicle.
o This repair does NOT require transfer cover removal from the transfer assembly.
o When replacing the drive shaft oil seal and the dust seal on 2019-2024 QX50 and 2022-2024
QX55 vehicles, it is recommended to remove the drive shaft support bearing bracket for additional
clearance.

Infiniti Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained
individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe that
a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Infiniti retailer to determine if this
applies to your vehicle.
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REQUIRED SPECIAL TOOL(S)
New or replacement Essential Tools are available from Tech•Mate online: www.techmatetools.com, or by
phone: 1-833-397-3493.
When ordering, keep in mind that the tool part number prefix has changed from “J” to “NI”.
For example, J-52469-1 is now NI-52469-1.

J-52469-1
Seal Protector

Figure 1

J-8092
Driver Handle

J-52280
Driver Handle
Figure 2

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ITB21-023B

J-52282
Seal Installer

Figure 3

J-52390
Seal
Ins
Seal
Installer

Figure 4

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ITB21-023B

SERVICE PROCEDURE

1.



To avoid leak recurrence and damage to the transfer assembly, use care when removing the dust
cover seal and the drive shaft oil seal.



To avoid damage to the transfer assembly and new seals, use an appropriate seal installer and seal
protector during the repair.

Using a suitable tool, remove the dust cover
seal (not shown).


2.

Discard the dust cover seal, it will not be
reused.

Using a suitable tool, remove the drive shaft oil
seal (Figure 5).


Discard the drive shaft oil seal, it will not
be reused.

Drive shaft oil
seal
Suitable tool
Figure 5

To avoid damage to the new dust cover seal and the new drive shaft oil seal, lubricate the seal lips before
installation.

3.

Universal Driver
Handle J-8092

Install the new drive shaft oil seal.

Drive shaft oil
seal

a. Install the new drive shaft oil seal onto
Seal Installer J-52390 (Figure 6).

Seal Installer
J-52390
Figure 6

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ITB21-023B

b. With the help of an assistant, install the
new drive shaft oil seal into the transfer
assembly to the specified depth of
2.0-2.6 mm (0.079-0.102 in.) using
Universal Driver Handle J-8092 and Seal
Installer J-52390 (Figure 7).

Drive shaft oil
seal

Drive shaft oil
seal depth

Figure 7

4.

Install the new dust cover seal.

Suitable tool

Dust cover seal

Figure 8
a. With the help of an assistant, install the
new dust cover seal to the specified depth
of 0.0-0.6 mm (0.000-0.024 in.) using a
suitable tool (Figure 8 and Figure 9).

Dust cover seal

Dust cover seal
depth

Figure 9

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ITB21-023B

Drive Shaft Support Bracket Installation Recommendations (2019-2024 QX50 and 2022-2024 QX55)

To avoid leak recurrence and damage to the transfer assembly and new seals, follow the sequence below on
2019-2024 QX50 and 2022-2024 QX55 vehicles for drive shaft support bearing bracket installation.
1.

Place and hold the drive shaft support bearing
bracket into position, ensuring it is flat against
the engine block and flat against the transfer
assembly and loosely install the bolts
(Figure 10).

Finger tighten
this bolt first

Drive shaft
support bearing
bracket

Finger tighten
this bolt second
Figure 10
2.

While continuing to hold the drive shaft support bearing bracket into position, finger tighten the top drive
shaft support bearing bracket to engine block bolt first, and then finger tighten the lower drive shaft
support bearing bracket to engine block bolt.

3.

Finger tighten the drive shaft support bearing bracket to transfer assembly bolts.

4.

While continuing to hold the drive shaft support
bearing bracket into position, torque the top
drive shaft support bearing bracket to engine
block bolt to specification first, and then torque
the lower drive shaft support bearing bracket to
engine block bolt (Figure 11).


Torque this
bolt first

Drive shaft support bearing
bracket to engine block bolt torque:
48.0 N•m (4.9 kg-m, 35 ft-lb)
Torque this
bolt second
Figure 11

5.

Torque the drive shaft support bearing bracket to transfer assembly bolts to specification.


Drive shaft support bearing bracket to transfer assembly bolt torque: 48.0 N•m (4.9 kg-m, 35 ft-lb)

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ITB21-023B

PARTS INFORMATION
DESCRIPTION

MODEL

PART NUMBER

QUANTITY

NUT-HEX
(Axle Nut)

QX50, QX55

40262-4GA0C

1

QX60, QX60 Hybrid

40262-2Y00A

1

QX50, QX55, QX60, QX60 Hybrid

33114-4BA0A

1

QX60, QX60 Hybrid

40073-0L700

1

QX50, QX55, QX60, QX60 Hybrid

33142-4BA0B

1

QX50, QX55, QX60, QX60 Hybrid

11026-1CA0A

1

QX50, QX55, QX60, QX60 Hybrid

999MP-1XGPP0P (1)

As needed

SEAL-OIL, DRIVE
PINION
(Axle Seal)
PIN-COTTER
(Cotter Pin)
SEAL-OIL
(Dust Cover Seal)
GASKET-FILLER PLUG
(Gasket)
Genuine Nissan Super
Hypoid GL-5 80W-90
(Transfer Oil)

(1) Order this item through the Infiniti Maintenance Advantage program: Phone: 877-INF-IMA1 (877-463-4621).
Website order via link on dealer portal www.NNAnet.com and click on the “Maintenance Advantage” link.

CLAIMS INFORMATION
Reference the current Infiniti Warranty Flat Rate Manual and use the indicated Flat Rate Time (FRT) for the
repair performed.

AMENDMENT HISTORY
PUBLISHED DATE

REFERENCE

DESCRIPTION

October 25, 2021

ITB21-023

Original bulletin published

June 17, 2022

ITB21-023A

Changes throughout

December 13, 2023

ITB21-023B

APPLIED VEHICLES and Tech•Mate contact information
revised

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ITB21-023B